/* * Copyright (c) 2008-2022 Jonathan Schleifer <js@nil.im> * * All rights reserved. * * This file is part of ObjFW. It may be distributed under the terms of the * Q Public License 1.0, which can be found in the file LICENSE.QPL included in * the packaging of this file. * * Alternatively, it may be distributed under the terms of the GNU General * Public License, either version 2 or 3, which can be found in the file * LICENSE.GPLv2 or LICENSE.GPLv3 respectively included in the packaging of this * file. */ #import "OFObject.h" OF_ASSUME_NONNULL_BEGIN /** * @protocol OFLocking OFLocking.h ObjFW/OFLocking.h * * @brief A protocol for locks. */ @protocol OFLocking <OFObject> /** * @brief The name of the lock. */ @property OF_NULLABLE_PROPERTY (copy, nonatomic) OFString *name; /** * @brief Locks the lock. * * @throw OFLockFailedException Acquiring the lock failed */ - (void)lock; /** * @brief Tries to lock the lock. * * @return A boolean whether the lock could be locked * * @throw OFLockFailedException The lock could not be acquired for another * reason than it already being held */ - (bool)tryLock; /** * @brief Unlocks the lock. * * @throw OFUnlockFailedException Releasing the lock failed */ - (void)unlock; @end OF_ASSUME_NONNULL_END